Bozeman Science
Population Variation
Paul Andersen explains the importance of genetic variation within a population. He begins with a discussion of the devil facial tumor that is a form of cancer transferred between Tasmanian devils. He then explains how a decrease in...
TED-Ed
TED-Ed: Are we living in a simulation? | Zohreh Davoudi
All life on Earth— living and inanimate, microscopic and cosmic— is governed by mathematical laws with apparently arbitrary constants. And this opens up a question: If the universe is completely governed by these laws, couldn't a...
Crash Course
The History of Atomic Chemistry: Crash Course Chemistry
How did we get here? Well, in terms of Atomic Chemistry, Hank takes us on a tour of the folks that were part of the long chain of other folks who helped us get to these deeper understandings of the world. From Leucippus to Heisenberg to...
Bozeman Science
AP Biology Practice 6 - Scientific Explanations and Theories
In this video Paul Andersen explains how scientific theories are created and modified over time. He starts by discussing the theory of natural selection as a model for the creation and modification of theories. He gives examples of...
TED-Ed
TED-Ed: How big is a mole? (Not the animal, the other one.) - Daniel Dulek
The word "mole" suggests a small, furry burrowing animal to many. But in this lesson, we look at the concept of the mole in chemistry. Learn the incredible magnitude of the mole--and how something so big can help us calculate the tiniest...
Bozeman Science
PS1B - Chemical Reactions
In this video Paul Andersen explains how chemical reactions progress as bonds are broken and reformed reformed. He explains the difference between changes in state and changes in molecules. He discussed collision theory and explains why...
Crash Course
The Core of a Business - Key Activities & Resources: Crash Course Business Entrepreneurship
When someone says they’re “studying business” or they “work in business,” they could mean so many different things. They could be in marketing, sales, finance or human resources. So much goes into keeping a company running smoothly.
SciShow
Codependency When Relationships Become Everything
Interpersonal relationships are important to humans, but there are also times when these relationships can be unhealthy.
TED Talks
TED: 4 reasons to learn a new language | John McWhorter
English is fast becoming the world's universal language, and instant translation technology is improving every year. So why bother learning a foreign language? Linguist and Columbia professor John McWhorter shares four alluring benefits...
TED Talks
TED: Dance to change the world | Mallika Sarabhai
At TEDIndia, Mallika Sarabhai, a dancer/actor/politician, tells a transformative story in dance -- and argues that the arts may be the most powerful way to effect change, whether political, social or personal.
SciShow
Why Are There So Many Species Near the Equator?
Tropical rainforests are known for being super biologically diverse _ they're full of different species, from colorful birds and insects to plants and fungi. We haven't even come close to cataloguing everything that's there.
TED-Ed
TED-Ed: Hacking bacteria to fight cancer | Tal Danino
In 1884, an unlucky patient who had a rapidly growing cancer in his neck came down with an unrelated bacterial skin infection. As he recovered from the infection, the cancer surprisingly began to recede. The infection had stimulated the...
Bozeman Science
Practice 1 - Asking Questions and Defining Problems
Paul Andersen explains how asking questions is the first step in both science and engineering. Questions allow scientists to direct inquiry with a goal of understanding the phenomena in the Universe. Questions allow engineers to define...
SciShow
Zombie Apocalypse?
Hank addresses recent news items that point toward a so-called "zombie apocalypse," and introduces us to some new additions to the periodic table.
Bozeman Science
Ecosystem Diversity
In this video Paul Andersen explains how biodiversity can be measured through genetic, species, or ecosystem variety on the planet. Species diversity is increased through speciation and decrease through extinction. The mechanism for...
Be Smart
The Science of Snowflakes
Snowflakes are infinitely beautiful, but are they infinitely unique? Here's all the science behind Earth's favorite cold crystal
Bozeman Science
Endosymbiosis
Paul Andersen explains how eukaryotic cells were formed through a process of endosymbiosis. He describes how aerobic bacteria became mitochondria and cyanobacteria became chloroplasts. He mentions an example of symbiosis that occurs...
TED Talks
TED: Science and democracy | Lee Smolin
Physicist Lee Smolin talks about how the scientific community works: as he puts it, "we fight and argue as hard as we can," but everyone accepts that the next generation of scientists will decide who's right. And, he says, that's how...
PBS
Why Do We Love Zombies?
Zombies are EVERYWHERE!! Wait, don't panic- we mean in pop culture, not outside your window. But why is that? Bad guys and monsters seem to go through phases: one decade there's a dozen movies about aliens, ten years later it's vampires....
SciShow
Is Passive-Aggressiveness a Personality Disorder?
You might have a roommate who rolls their eyes a lot and leaves sassy sticky notes all over the place, but no matter how frustrating it is, it’s probably not a personality disorder.
Bozeman Science
ETS1C - Optimizing the Design Solution
In this video Paul Andersen explains how engineers optimize the design solution. After a number of solutions have been identified engineers will test each of them against a given set of criteria. They will trade-off different phenomenon...
SciShow
Does Giving Thanks Really Make Us Feel Good?
Researchers have found that the expression of gratitude gives positive effects on our both mental and physical health.
PBS
Does Math Really Exist?
Math is invisible. Unlike physics, chemistry, and biology we can't see it, smell it, or even directly observe it in the universe. And so that has made a lot of really smart people ask, does it actually even EXIST?!?!